Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5dd52c729ec8ca…

MALICIOUS

PDF

46.8 KB Created: 2020-08-17 14:41:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86a8f749a2f99dee8a38beb40b82b076 SHA-1: cfe0186708f4a5785b8e3b8b333a7ccaa9393a16 SHA-256: eb5dd52c729ec8ca0f5e6bf1b24933fe3b43166dbf0acbe0aa25c55ffcc2b2d3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=7th+grade+math+review+worksheet+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body and embedded URLs reinforce this by referencing worksheets and linking to various PDF files, a common lure for phishing or malware delivery. The presence of multiple Shopify links, while some are benign, suggests a link farm tactic to obscure the malicious redirector.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=7th+grade+math+review+worksheet+pdf
    • http://piweto.jazzrecordartcollective.com/uploads/1/3/1/4/131406592/e84e837d8.pdf
    • https://cdn.shopify.com/s/files/1/0448/1702/3138/files/biology_of_belief_bruce_lipton.pdf
    • https://cdn.shopify.com/s/files/1/0434/0727/8238/files/what_is_msi_super_charger.pdf
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/24690218120.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/32222195416.pdf
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/nesobijakegaxaviraduxaja.pdf
    • https://cdn.shopify.com/s/files/1/0443/6351/4012/files/process_of_benchmarking_in_tqm.pdf
    • https://cdn.shopify.com/s/files/1/0428/8980/5980/files/77729221839.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/central_service_technical_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/kojodizimuxovave.pdf
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/noduronasava.pdf
    • https://cdn.shopify.com/s/files/1/0428/8312/1319/files/18474177841.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a92.bin
74d797ceab9ed8d2e54daa5dbb895c85fe0d6ee1b602518c1843b22c96a1979b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A92 5304 bytes
font_01_sfnt_off00007cbf.bin
be9c4f4d369604fd1d6ee5d5c8f3e46b90359cd1660f4e1fee344876b276d967		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBF 10388 bytes
font_02_sfnt_off0000a03a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA03A 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.